I like the look of the Metro interface a lot. I've been a fan of it since they started changing their UI in the windows phone. Frankly, it's more aesthetically pleasing to me than appl's iOS. I'm an Apple fanboy, but I find the iOS interface a bit childish/simple looking. It functions well, but it always seems to limit me in some way which I don't like. That being said, Android wasn't nearly as intuitive for me and I went back to iOS pretty quickly.
I'm very intrigued by Surface and think that Msoft did a very nice job with it. However, I think they made a crucial error in announcing it this early and not being able to release it immediately or within a few weeks. It's going to be old news by the time it's available, and they've set themselves up for a pricing disaster. Did i read correctly that it's going to launch 3 months after Windows 8? If it turns out that people don't like Windows 8, very few will buy Surface. Finally, a lot of articles have mentioned how Msoft just one upped all of it's partners and it may hurt them long term. Frankly, the partners needed the kick in the pants IMHO. I don't see Msoft as one-upping anyone, just setting the bar very high.